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Finding the Fourth Proportional to 8,993.88, 13,481.70 and 3,445.80

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Solution

The fourth proportional to 8,993.88, 13,481.70 and 3,445.80 is: 5,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.88 : 13,481.70 = 3,445.80 : x
  2. Step 2: Convert to fraction form
    8,993.88/13,481.70 = 3,445.80/x
  3. Step 3: Cross multiply
    8,993.88x = 13,481.70 × 3,445.80
  4. Step 4: Simplify right side
    8,993.88x = 46,455,241.86
  5. Step 5: Solve for x
    x = 46,455,241.86/8,993.88
  6. Step 6: Final answer
    x = 5,165.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.